// Tree Menu
function ShowHide_div(menu_id,div_id){
	if(document.getElementById(div_id)){
		if(document.getElementById(div_id).style.display=='none'){
			document.getElementById(div_id).style.display='';
			if(document.getElementById(menu_id)){
				document.getElementById(menu_id).className='tree_menu_open';
			}
		}else{
			document.getElementById(div_id).style.display='none';
						if(document.getElementById(menu_id)){
				document.getElementById(menu_id).className='tree_menu_close';
			}
		}
	}
}